+1 for mass storage mode. Just use it like u would use a thumb drive. Moving music on and off. Piece of cake. OR u could go buy a thumb drive for 9 bux.
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Plug the phone into the computer using the USB cable. A window should pop up showing you the two "drives" on the Storm... one will be for the device memory... the other will be for the media card. When you determine which one is the media card, go to the music folder and transfer the files to the PC.